ASRock P55 Pro/USB3 [23/244] English english english english english

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ASRock P55 Pro/USB3 Motherboard

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C. Connect Ground (GND) to Ground (GND).

D. MIC_RET and OUT_RET are for HD audio panel only. You don’t

need to connect them for AC’97 audio panel.

System Panel Header This header accommodates

(9-pin PANEL1) several system front panel

(see p.2 No. 24) functions.

Power LED Header Please connect the chassis

(3-pin PLED1) power LED to this header to

(see p.2 No. 23) indicate system power status.

The LED is on when the system

is operating. The LED keeps

blinking in S1 state. The LED is

off in S3/S4 state or S5 state

(power off).

Chassis Speaker Header Please connect the chassis

(4-pin SPEAKER 1) speaker to this header.

(see p.2 No. 18)

Chassis and Power Fan Connectors Please connect the fan cables

(4-pin CHA_FAN1) to the fan connectors and

(see p.2 No. 29) match the black wire to the

ground pin.

(3-pin CHA_FAN2)

(see p.2 No. 7)

(3-pin CHA_FAN3)

(see p.2 No. 12)

(3-pin PWR_FAN1)

(see p.2 No. 40)

CPU Fan Connector Please connect a CPU fan cable

(4-pin CPU_FAN1) to this connector and match

(see p.2 No. 4) the black wire to the ground pin.

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